20313012233 has 16 divisors (see below), whose sum is σ = 21803683200. Its totient is φ = 18868204800.

The previous prime is 20313012199. The next prime is 20313012257. The reversal of 20313012233 is 33221031302.

It is a cyclic number.

It is not a de Polignac number, because 20313012233 - 2²⁶ = 20245903369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20313011233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146273 + ... + 249041.

It is an arithmetic number, because the mean of its divisors is an integer number (1362730200).

Almost surely, 2^20313012233 is an apocalyptic number.

It is an amenable number.

20313012233 is a deficient number, since it is larger than the sum of its proper divisors (1490670967).

20313012233 is a wasteful number, since it uses less digits than its factorization.

20313012233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102992.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20313012233 its reverse (33221031302), we get a palindrome (53534043535).

The spelling of 20313012233 in words is "twenty billion, three hundred thirteen million, twelve thousand, two hundred thirty-three".